Sabine Lisicki of Germany, left, greets Agnieszka Radwanska of Poland at the net after defeating her in a Women's singles semifinal match at the All England Lawn Tennis Championships in Wimbledon, London, Thursday, July 4, 2013. (AP Photo/Anja Niedringhaus)

Kirsten Flipkens of Belgium falls to the court after missing a return to Marion Bartoli of France during their Women's singles semifinal match at the All England Lawn Tennis Championships in Wimbledon, London, Thursday, July 4, 2013. (AP Photo/Kirsty Wigglesworth, Pool)

Kirsten Flipkens of Belgium walks back to her chair during a break in play against Marion Bartoli of France in a Women's singles semifinal match at the All England Lawn Tennis Championships in Wimbledon, London, Thursday, July 4, 2013. (AP Photo/Alastair Grant)

Marion Bartoli of France returns to Kirsten Flipkens of Belgium during their Women's singles semifinal match at the All England Lawn Tennis Championships in Wimbledon, London, Thursday, July 4, 2013. (AP Photo/Anja Niedringhaus)

Sabine Lisicki of Germany serves to Agnieszka Radwanska of Poland during their Women's singles semifinal match at the All England Lawn Tennis Championships in Wimbledon, London, Thursday, July 4, 2013. (AP Photo/Anja Niedringhaus)

Marion Bartoli of France returns to Kirsten Flipkens of Belgium in a Women's singles semifinal match at the All England Lawn Tennis Championships in Wimbledon, London, Thursday, July 4, 2013. (AP Photo/Alastair Grant)

Sabine Lisicki of Germany reacts during her Women's singles semifinal match against Agnieszka Radwanska of Poland at the All England Lawn Tennis Championships in Wimbledon, London, Thursday, July 4, 2013. (AP Photo/Kirsty Wigglesworth)

Sabine Lisicki of Germany plays a return to Agnieszka Radwanska of Poland during their Women's singles semifinal match at the All England Lawn Tennis Championships in Wimbledon, London, Thursday, July 4, 2013. (AP Photo/Anja Niedringhaus)

Agnieszka Radwanska of Poland stretches her leg during a break in her Women's singles semifinal match against Sabine Lisicki of Germany at the All England Lawn Tennis Championships in Wimbledon, London, Thursday, July 4, 2013. (AP Photo/Tom Hevezi, Pool)